
A.9 Feedbacks 
A.9.1  Feedback Supply Voltage 
Feature Details 
Main encoder supply voltage  5 V +5% @ 200 mA maximum 
Auxiliary encoder supply voltage  5 V +5% @ 200 mA maximum 
A.9.2  Incremental Encoder Input 
Feature Details 
Encoder format   A, B and Index 
 Differential 
 Quadrature 
Interface:   RS-422 
Input resistance  Differential: 120 Ω 
Maximum incremental encoder frequency  Maximum: 5 MHz pulses  
Minimum quadrature input period (PIN)  112 nsec  
Minimum quadrature input high/low period (PHL)  56 nsec  
Minimum quadrature phase period (PPH) 28 nsec 
Maximum encoder input voltage range  Common mode: ±7 V 
Differential mode: ±7 V 
Figure  A-1: Encoder Phase Diagram 
Tuba Installation Guide Technical Specifications 
MAN-TUBIG (Ver. 1.3) 
A-9